Wire-annealing furnace.



J. C. ST. CLAIR.

WIRE ANNEALING FURNACE.

APPLICATION FILED NOV. '2, 1912.

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Jay. 2

Patented June 18, 1918* I. C. ST. CLAIR.

WIRE ANNEALING FURNACE. APPLICATION FILED NOV. 2,1917- I 1,269,973. 4Patented June 18, 1-918.

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ooooooo-oooooooo'4o00000000000000 JOHN COOK ST. CLAIR, 0F JOHNSTOWN,PENNSYLVANIA.

WIBE-ANNEALING FURNACE.

Specification of Letters Patent. Patented J 18, 1918 Application filedNovember 2, 1917. Serial No. 199,999.

To all whom it may concern:

Be it known that I, JOHN Coon ST. CLAIR, a citizen of the United States,residing at 'Johnstown, in the county of Cambria and State ofPennsylvania, have invented a Wire-Annealing Furnace, of which thefollowing is a specification.

Figure 1 is a side elevation. front elevation. Fig. 3 is side elevationwith outer brick wall removed. Fig. 4 is rear elevation. Fig. 5 is aview in elevation of one of the sheaves as herein embodied.

1-1 are cooling doors to be used in regulating temperature of the heatchamber 5.

2-2 are doors of fire boxes 9'9. 3'3 are doors to admit arms 6 uponwhich are sheave wheels 7, around which the wire is wrapped, the numberof wraps determines the extent of annealation.

Arms 6 are drawn singly from the furnace to allow wire to be wrappedaround sheaves 7, after which sheaves and arms are returned to furnace.

The wire continues from sheaves through holes in perforated plate 4, andis drawn from furnace by machinery working independently of furnace.

10 is rod upon which are secured jointed arms 6. 11 is a solid brickwall between fire com artment 8 and heat chamber 5. 12 is a bric ormetal arrangement upon which rests arms 6 and keeps sheaves 7 slightlyelevated above floor of heat chamber 5.

13 is draft route leading from fire compartment to under-ground flue.

I might add the following information concerning my invention:

While my drawing shows thirty arms and sheaves, this particular numberdoes not in any way enter into the ideas embodied in my invention. Thenumber of arms and sheaves may be more or less than shown in my drawmg.

The arms holding the sheaves are so arranged that they can be drawnsingly from the furnace, the wire is then wrapped around the sheaves,the number of wraps will determine theextent of annealation;

for instance, a strand of wire given ten wraps around a sheave will notbe annealed to the same degree of softness as a strand of wire giventwenty wraps, for the reason that the strand of wire given twenty wrapswill remain in the furnace twice as long as the strand given ten wraps.

I will also add that a particular size of Fig. 2 is furnace, or in fact,a particular size of any part of the furnace does not enter into theideas embodied in my invention.

I am aware that prior to my invention the lead-pan method of annealingwire was used, but this being entirely different from my invention, Iclaim:

1.. In a wire. annealing furnace having openings in one end, a series ofsheaves supported on jointed arms adapted to be individually withdrawnor placed into'the furnace chamber through said openings, andperforations in line with said openings at the other end through whichthe wire is drawn from the furnace.

2. In a wire annealing furnace having an opening in one wall, asheave-supported on" a jointed arm adapted to be withdrawn or placedinto the furnace chamber through said opening, a wall of the furnacechamber being provided with a perforation through which the wire isdrawn from the furnace.

3. In a wire annealing furnace having an opening in one wall, a sheavesupported on a ointed arm adapted to be withdrawn or placed into thefurnace chamberthrough 'said opening, a wall of the furnace chamberbeing provided with a perforation through which the wire is drawn fromthe furnace,

and means coacting with the portion of the or placed into the furnacechamber through said openings, and perforations in a wall of the furnacechamber through which the mire is withdrawn from the furnace cham- 5. Awire annealing furnace having openings in the wall of the furnacechamber, a sheave supported on a jointed arm adapted to be withdrawn orplaced into the furnace chamber through said openings, an endjportion ofsaid jointed arm being pivotally mountedexteriorly of the furnace at apoint below the opening, a wall of the furnace chamber being providedwith a perforation through whichthe wire is drawn from the furnace.

. 6. In a w1re annealing furnace having an Q a j y 1,206,978;

, opening in a wall of the furnace chamber, -withdrawn or placed intothe furnace chama sheave supported on an arm adaguted to her throughsaid opening, a wall of the furbe withdrawn or placed into the mace nacechamber beinfinprovided. with a perchamber through said opening, a wallof the foration through w ch the wire is drawn 5 furnace chamber beingprovi ed with a perfrom the furnace, and means eoacting with forationthrough which the wire is drawn the arm when inserted withinthe furnacefrom the furnace. ,chamber for maintaining the'sheave carried '7. In awire. annealing furnace having "an thereby out of contact with the floorof the (gelling in a wall oithe furnace chamber, a furnace chamber.

eave supported on an arm adapted to be JOHN COOK ST. CLAIR.

